Improvement in harrows



W. "H. PABLIN.

Harrow.

Patented July 20,1875.

Q/Zfnewew MPETERS, FHOTO UTHOGRAFMER, WASHINGTON n c WILLIAM H. PARLIN,OF CANTON, ILLINOIS, ASSIGNOR TO PARLIN & ORENDORFF, OF SAME PLACE.

IMPROVEMENT IN HARROWS.

Specification forming part of Letters Patent No. 165,753, dated July 20,1875; application filed May 11, 1875.

with a hook upon its end, to engage with an eye projecting from one ofthe sections, for securing the rod in place and against longitudinaldisplacement, while at the same time it will admit of its easy removaland replacement. It further consists in an improved method of bracingthe projecting eyebolts, all as hereinafter fully described.

To enable others skilled in the art to make and use my invention, I willnow proceed to describe the same with reference to the accompanyingdrawings, in which Figure l is a top view of a harrow embodying myinvention. Fig. 2 is a front elevation of the harrow. Fig. 3 is avertical sectional view on the line a; 00 in Fi 1.

Referring to the parts by letters, letters A represent the sidesections, and letter A the central section, of a harrow in threesections, each section formed of bars a, united by transverse rods B,having eyes 1) on one end, and nuts Z) on their other ends, on the sidesections, while in the center section they have heads upon one end andnuts upon the other, as shown at 1. Spools b are placed upon each rod B,for adjusting the distance between the bars a in each section. The eyeends of the rods B in the side sections and adjacent to the centralsection are extended, as shown at Fig. 1, and stayed by conical-shapedblocks 0, the bases of which rest against the side bars a, and areprevented from turning by lugs c, and the outer ends of which aregrooved vertically, and form seats for the adjacent sides of the eyes11, to hold them from turning and always in the necessary verticalposition. Eyebolts B are secured to and project from the side bars a ofthe central section, and are stayed by blocks (3, in the same manner asthe eyes I). D D are the rods for connecting the side' to the centralsections by simply passing it through the eyes I) B, as plainly shown inthe drawings. One end of each rod D is bent or formed into a hook, d,which, when the rod and sections are in place, may be turned to engagewith a staple, E, projecting from an adjacent bar, a, as shown by thefull lines in the drawings, and may be turned to disengage the hook, forthe purpose of withdrawing the rods D when desired, as plainly shown bydotted lines at Fig. 2. G is the draft-bar. connected to each section bya separate chain, 9, varying in length, as shown at Fig. 1, forthe'purpose of drawing the bars a, with their teeth a, in a positiondiagonal to the line of progression.

I am aware that harrows have been constructed in sections, and pivotedto each other by eyebolts and a pivotal rod, on which they couldreciprocate and vibrate in a similar manner, and which rod was held fromendwise movement, but was difficult to remove, as was often required inseparating the sections for loading on wagons and for other purposes;hence I do not claim such arrangement of parts; but

What I claim as new, and desire to secure by Letters Patent, is-

The narrow-sections A A, provided with stay-blocks, eyebolts, andstaples, substantially as described, in combination with the rods D,having hooks d on their ends, for the purpose specified.

WILLIAM H. PARLIN.

W'itnesses:

0. WILsoN, W. J. ORENDORFF.

